/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors 
 * may be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.tracker.imports.util;

import java.util.Objects;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import org.apache.commons.lang3.ObjectUtils;
import org.hisp.dhis.relationship.RelationshipKey;
import org.hisp.dhis.relationship.RelationshipType;
import org.hisp.dhis.tracker.imports.domain.Relationship;
import org.hisp.dhis.tracker.imports.domain.RelationshipItem;

@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class RelationshipKeySupport {

  public static boolean hasRelationshipKey(
      Relationship relationship, RelationshipType relationshipType) {
    return ObjectUtils.allNotNull(relationshipType, relationship.getFrom(), relationship.getTo());
  }

  private static RelationshipKey.RelationshipItemKey getRelationshipItemKey(
      RelationshipItem relationshipItem) {
    if (Objects.nonNull(relationshipItem)) {
      return RelationshipKey.RelationshipItemKey.builder()
          .trackedEntity(relationshipItem.getTrackedEntity())
          .enrollment(relationshipItem.getEnrollment())
          .trackerEvent(relationshipItem.getEvent())
          .singleEvent(relationshipItem.getEvent())
          .build();
    }
    throw new IllegalStateException("Unable to determine uid for relationship item");
  }

  public static RelationshipKey getRelationshipKey(
      Relationship relationship, RelationshipType relationshipType) {
    return RelationshipKey.of(
        relationshipType.getUid(),
        getRelationshipItemKey(relationship.getFrom()),
        getRelationshipItemKey(relationship.getTo()));
  }
}
